56 lines
1.0 KiB
Markdown
56 lines
1.0 KiB
Markdown
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---
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id: 5900f4291000cf542c50ff3a
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challengeType: 5
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title: 'Problem 187: Semiprimes'
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videoUrl: ''
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localeTitle: 问题187：半致
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---
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## Description
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<section id="description">复合是包含至少两个素因子的数字。例如，15 = 3×5; 9 = 3×3; 12 = 2×2×3。 <p>在30以下有十种复合材料恰好包含两个，不一定是不同的主要因素：4,6,9,10,14,15,21,22,25,26。 </p><p>有多少复合整数，n <108，恰好有两个，不一定是不同的素因子？ </p></section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler187()</code>应该返回17427258。
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testString: 'assert.strictEqual(euler187(), 17427258, "<code>euler187()</code> should return 17427258.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler187() {
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// Good luck!
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return true;
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}
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euler187();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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